Lock-nut.



K. KESSLER.

LOOK NUT.

APPLIUATION FILED 11120.26, 1012.

1973,49?, Patented Sept. 16, 1913.

UNTTED @TETES PATENT UEETCE.

KARL KESSLER, OF WASSERALFINGEN, GERMANY.

LOCK-NUT.

fo all whom may concern Be it known that I, Kann Knssnnn, subject of theKing of Vurttemberg, residing at lVasseralfing'en, Kingdom oit' Vurttenrberg, Germany, have invented a certain new and Improved Lock-Nut, ofwhich the following is a specification.

This invention relates to an improved means of locking screw-threadedcaps upon bolts, spindles, lubricating' axles and the like.

According to the present invention the screw-threaded end of the bolt,spindle or lubricating axle is provided with a recess in which is fitteda spring' adapted to bear against the sides of a central pin of annularcross section projectinginternally from the screw-threaded cap andriveted or otherwise secured thereto.

In order that my invention may be more clearly understood, reference ismade to the accompanying` drawings which show my improved locking meansas applied by way of example to the axle cap of a lubricating axle.

Figure l is a sectional View through the axis ofthe axle, Fig'. 2 is across section on the line AMB ot Fig. l, Fig. 3 is a partial sectionalview of the axle cap.

The axle, spindle, bolt or the like a, which on the drawings is shownprovided with a central passage o communicatingby way of an orifice cwith a lubricating groove cl, is provided with a cylindrical recess e atone end communicating with the central passage b. The screw-threaded capf is provided with an internally projecting central pin g prete 'ablysquare in cross section and riveted 0r otherwise secured to the cap.This Specification of Letters Patent.

Application filed December 26, 1912.

Patented Sept. 16, 1913.

Serial No. 738,731.

pin g is adapted when the axle cap is screwed in position, to bearagainst the inwardly turned end /i oi a blade spring zl which is bentcircnlarly to tit frictionally within the recess e but which may, it'desired be otherwise secured in the recess.

lt will be seen that when screwing the cap on or otlA the corners oi.the pin g will depress the end of the spring zf and that when the end /ioi' the spring lies against one of the llat sides oit the pin, the cap fwill be prevented from accidental rotation such as might be caused byvibration or the like.

1. .ln combination with a screw-threaded bolt or spindle having' arecess in the end thereo'l', an internally screw-threaded cap adapted tobe screwed thereon, an internally projecting' central pin in said cap ofangular cross-section, and a spring' in said recess adapt-ed to bearagainst the sides ol. said pin.

2. In combination with a scrcw-threinlcd bolt or spindle having' acylindrical recess in the end thereof, an internally screwed cap adaptedto be screw-threaded thereon. an internally projecting central pin insaid cap of angular eross-scction, and a spring bent circnlarly to `titfrictionally in said recess and having one end bent inwardly to bearagainst the sides ot' said pin.

In testimony whereo'l. I have allixed my signature in presence of twowitnesses.

KARL KESSLER.

fitnesses Ennns'r ENTI-1N MANN, FmDA Kimnnn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

